SLM-processed MoS₂/Mo₂S₃ nanocomposite for energy conversion/storage applications

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• Molybdenum disulfide (MoS₂) nanocomposites are crucial for electrochemical energy conversion and storage systems (EECSS).
• Conventional and 3D printing methods are used for MoS₂ processing, but advanced techniques are needed for precise structural control.

Purpose of the Study:

• To investigate the use of selective laser melting (SLM) for processing MoS₂-based nanocomposites.
• To tune the crystallographic structure of MoS₂ and in-situ distribute Mo₂S₃ nanoparticles.
• To evaluate the potential of these nanocomposites in EECSS.

Main Methods:

• Selective Laser Melting (SLM) was employed to process bulk MoS₂.
• The crystallographic structure was tuned to a 2H/1T phase.
• Mo₂S₃ nanoparticles were distributed in-situ within MoS₂/Mo₂S₃ nanocomposites.

Main Results:

• SLM successfully produced MoS₂/Mo₂S₃ nanocomposites with tunable 2H/1T phases.
• In-situ distribution of Mo₂S₃ nanoparticles was achieved.
• The processed materials show potential for EECSS applications.

Conclusions:

• Selective laser melting is a viable technique for advanced processing of 2D nanomaterials like MoS₂.
• The developed MoS₂/Mo₂S₃ nanocomposites are promising for electrochemical energy conversion and storage.
• Laser-based powder bed processing offers broad applicability in functional structures for aerospace and high-temperature systems.